The new browser is based on Webkit, the advanced-standards-compliant, open source browser engine that powers Apple’s Safari for Mac and PC, but Chrome currently runs only in Windows. You figure that out.

To compete with Microsoft, the new browser must offer what other browsers do not. The risk inherent in that proposition is a return to proprietary browser code. It is not yet clear to me whether Chrome will compete the wrong way—offering Chrome-only features based on Chrome-only code, thus prompting Microsoft to rethink its commitment to standards—or the right way.

Competing by offering features other browsers do not (easier downloads, streamlined user interface) or by consolidating other browsers’ best features (Opera’s Speed Dial, Firefox’s auto-complete) avoids this risk, as improvements—or at any rate, changes—to the browser’s user interface have no bearing on the display of existing web content.

Competing by supporting web standards ahead of the pack, although not entirely without risk, would also be a reasonable and exciting way to compete. When one browser supports a standard, it goads other browser makers into also supporting it. Because Safari, for instance, supports @font-face, Firefox is not far behind in supporting that CSS spec. @font-face raises font licensing problems, but we’ll discuss those another time. The risk that concerns us here is when a browser supports an emerging specification before it is finalized, thus, essentially, freezing the spec before it is ready. But that is the traditional dance between spec authors and browser makers.

For web standards and web content, we once again live in interesting times. Welcome, Chrome!